Windows
Hold Alt and type 7715 on the numeric keypad.
Accents
Copy the character, or use the shortcut that matches your keyboard and app.
All H accentsHold Alt and type 7715 on the numeric keypad.
Character Viewer → h dot above
Type 1E23 then Alt + X
Insert → Special characters → h dot above
Click the keycap, then paste with Ctrl+V or Cmd+V.
Num Lock on, hold Alt, type 7715, release Alt.
Use the Unicode, HTML, CSS, or JS value below in documents and stylesheets.
U+1E23ḣḣ\1E23\u{1E23}Alt + 7715